A) More 13C would be found in the birch than 14C in the Douglas fir, is the correct option.
<h3>What is Carbon-14?</h3>
Carbon-14 (14C) or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.
Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples.
Carbon-14 was discovered on February 27, 1940, by Martin Kamen and Sam Ruben at the University of California Radiation Laboratory in Berkeley, California. Its existence had been suggested by Franz Kurie in 1934.
<h3>What is Carbon-13?</h3>
Carbon-13 (13C) is a natural, stable isotope of carbon with a nucleus containing six protons and seven neutrons. As one of the environmental isotopes, it makes up about 1.1% of all natural carbon on Earth.
To learn more about Carbon-13: brainly.com/question/15131632 #SPJ4
During the Great Depression many working class families struggled with money, many lost their jobs and had no way to support their families. Some had to sell their cars because they no longer could afford it. Without access to their own vehicles many young men and people searching for work had to walk or resort to jumping and hiding on freight trains.
Answer: C
Answer:
c. A polymer breaks up to form monomers.... consumed
Explanation:
Hydrolysis, hydro (water), lysis (breakage), corresponds to a chemical process that involves the breaking of a molecule in the presence of water.
During hydrolysis, a particular molecule (a polymer) breaks down into smaller molecules (monomers) and completes with the ions resulting from the water molecule, resulting in the formation of a different molecule from the original, resulting in a chemical reaction such as saponification of acids. fatty acids and other esters, sugar inversion and protein breakdown.
Answer: Osmosis is the spontaneous net movement of solvent molecules across a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on both sides.
Explanation:
a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
2.
the process of gradual or unconscious assimilation of ideas, knowledge, etc.
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<span>Multinucleated, striated, long threadlike cells
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A group of similar cells that perform a particular function is called a tissue.
There are different kinds of tissues in both plants and animals. In man, there are four major types of tissue.
1. Muscle tissue - made up of cell that are long and fibrous. The muscle cells are able to contract.
